Roundcube Webmail 1.6.x < 1.6.18 / 1.7.x < 1.7.3 Multiple Vulnerabilities

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(342614);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/03");

  script_cve_id(
    "CVE-2026-74997",
    "CVE-2026-74998",
    "CVE-2026-74999",
    "CVE-2026-75000",
    "CVE-2026-75002",
    "CVE-2026-75003",
    "CVE-2026-75004",
    "CVE-2026-75006",
    "CVE-2026-75007",
    "CVE-2026-75010"
  );

  script_name(english:"Roundcube Webmail 1.6.x < 1.6.18 / 1.7.x < 1.7.3 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"An application running on the remote web server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote web server is running Roundcube Webmail version 1.6.x prior to 1.6.18 or 1.7.x prior to 1.7.3. It is,
therefore, affected by multiple vulnerabilities:

  - The cmd_learn driver of the markasjunk plugin is subject to remote code execution via crafted placeholder
    replacement values. This issue only affects Roundcube instances using the markasjunk plugin with its cmd_learn
    driver. (CVE-2026-74997)

  - Mail search and LITERAL+ byte-count desynchronization could lead to information disclosure or privilege
    escalation via IMAP command injection. (CVE-2026-75002)

  - Responses from the CSS (Cascading Style Sheets) proxy were not validated, which may result in information
    disclosure or XSS (cross-site scripting) via MIME sniffing. (CVE-2026-74998)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?95a8a690");
  script_set_attribute(attribute:"see_also", value:"https://github.com/roundcube/roundcubemail/releases/tag/1.6.18");
  script_set_attribute(attribute:"see_also", value:"https://github.com/roundcube/roundcubemail/releases/tag/1.7.3");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Roundcube Webmail version 1.6.18, 1.7.3 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-74997");

  script_cwe_id(77, 78, 79, 669, 918);

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/08/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/03");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:roundcube:webmail");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("roundcube_webmail_detect.nbin");
  script_require_keys("installed_sw/Roundcube Webmail");
  script_require_ports("Services/www", 80, 443);

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'Roundcube Webmail', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'min_version': '1.6.0', 'fixed_version': '1.6.18'},
        {'min_version': '1.7.0', 'fixed_version': '1.7.3'}
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_HOLE, flags:{'xss': TRUE});
vdf::handle_check_and_report_errors(vdf_result:result);